Reduced male-male nipple made of galvanized malleable cast iron

Reduced male-male nipple made of galvanized malleable cast iron

The galvanized malleable iron male-to-male reduced nipple is an indispensable connecting component, designed to provide superior durability and corrosion resistance. This technical part is the ally of professionals who work in demanding environments or who handle fluids requiring increased protection of the pipes. It allows an efficient and secure transition between two threads of different diameters, thus preserving the structural integrity and tightness of the network. The application of the hot-dip galvanizing process gives this fitting exceptional longevity, making it ideally suited for installations where long-term reliability is paramount.

Expanded Scope of Application with Galvanizing

Thanks to its galvanized finish, this reduced nipple is ideal for a multitude of applications where moisture or corrosive agents are present. It excels in the distribution of water, including drinking water, as well as in the transportation of gases, steam, and non-corrosive liquids and gases. It is especially recommended for HVAC (Heating, Ventilation, and Air Conditioning) systems and outdoor or in-ground installations, where rust protection is essential. In addition to its functional uses, its silvery and raw appearance, characteristic of galvanization, makes it very popular in the manufacture of industrial and vintage furniture. It brings a touch of authenticity and solidity to designer creations (shelves, racks, lighting) who wish to integrate authentic and resistant plumbing elements.

Standardization and High Quality Material

The manufacture of this fitting is subject to strict protocols to ensure optimal quality. The parts are produced in full compliance with international standards, including EN 10242 and ISO 49, ensuring seamless compatibility and interchangeability with other piping elements. The base material is malleable cast iron EN-GJMB-350-10, in accordance with EN 1562. This cast iron is chosen for its high mechanical strength and its ability to withstand stresses without cracking. Galvanizing only adds a layer of protection, improving the already high technical performance of this material, creating a strong barrier against oxidation.

The Advantage of Waterproofing and Maximum Protection

The performance of this nipple is based on a double level of protection: the tightness provided by the thread geometry and the external protection via galvanization.

• The fitting has a tapered male thread (R) that complies with ISO 7-1 (BSPT). This type of thread, known for its ability to create a mechanical seal through compression, ensures a reliable and leak-free connection when properly installed.

• The galvanized finish is applied for a minimum thickness of at least 70μm (micrometers), a durable and uniform protective layer. This coating acts as a sacrificial anode, protecting the cast iron steel from corrosion, even with slight scratches.

• As with all high-quality fittings, careful attention is paid to the inspection: each fitting is 100% tested for tightness before shipment.

• Union Spool Locks, where applicable, also comply with the ISO 228-1 gas standard (BSPP), for maximum consistency and reliability of the connection system.

Tips for Long-Term Installation and Use

To maximize the life and efficiency of this galvanized reduced nipple, it is important to follow a proven installation methodology. The robustness of the fitting must be complemented by careful installation.

• Surface Treatment: Although galvanized, it is good practice to use a soft brush to clean the nets before applying any product.

• Application of Paste or Sealing Tape: It is imperative to use a suitable sealant (quality PTFE tape or specific joint paste) on the male thread to optimize the sealing of the BSPT tapered thread.

• Measured Tightening: Tighten using suitable tools. The tightening must be sufficient to ensure tightness, but controlled so as not to deform or weaken the galvanized threads and the structure of the fitting.

• Maintenance: In very humid or saline environments, regular inspection is advised. Galvanization is very resistant, but preventive maintenance ensures maximum durability.

• For the Furniture: The raw appearance of galvanizing does not require any special finishing, but a maintenance wax can be applied to accentuate the shine and further protect the surface.

Detailed technical specifications

The table below summarizes the key specifications of this reduction fitting: